what does your father often do after supper?在这个句子里为什么前面用does 后面用do

What does your mother what does your borther what does your mother do? What does your father work? what does your mother do? what does your family like What time does your school What does your sister do? What does your parents do? what does your grandfather have? what does your grandfather do? What does your father?是什么意思 what time does your firstclassbegininthemorniwhat time does your firstclassbegininthemorning回答 what does your best friend look like what does your mother do?_______________________ What does your mother like?的意思 What does your mother do?怎么回答 do,mother,does,what,your?组成句子